Thunbergia grandiflora  (Roxb. ex Rottl.) Roxb.

Bengal Clockvine, Bengal Trumpet, Blue Skyflower, Blue Thunbergia, Blue Trumpetvine, Clockvine, Skyflower, Skyvine
Plants > Angiosperms > Acanthaceae > ​​​Thunbergia grandiflora
Kingdom: Plantae
Clade: Angiosperms
Class: Dicots
Order: Lamiales
Family: Acanthaceae
Genus: Thunbergia
Species: grandiflora
  • Common names: Bengal Clockvine, Bengal Trumpet, Blue Skyflower, Blue Thunbergia, Blue Trumpetvine, Clockvine, Skyflower, Skyvine
  • Thai names: คาย khai (Pattani), ช่องหูปากกา chong hu pak ka (Peninsular), ช่ออินทนิล cho inthanin (Bangkok), น้ำผึ้ง nam phueng (Chon Buri), ปากกา pak ka (Krabi), ย่ำแย้ yam yae (Phitsanulok, Uttaradit), สร้อยอินทนิล soi inthanin (Bangkok)
  • Chinese names: 山牵牛 shan qian niu
  • Distribution: Native to China, India, Nepal, Indochina and Burma and widely naturalised elsewhere.
  • Image locations: Chiang Mai (Doi Suthep-Pui N.P., Mae Rim, Ob Khan N.P.)
  • Map info: Provinces are highlighted according to phytogeographical areas as used in the Flora of Thailand project.
  • Additional notes: 
Thunbergia grandiflora image location map.jpg
Image locations
Images of Thunbergia grandiflora from Thailand.
Thunbergia grandiflora, Blue Trumpet Vine from Thailand.jpg
Thunbergia grandiflora, Mae Rim, Chiang Mai, 2015
Acanthaceae Thunbergia grandiflora Ob Khan NP Jan 2014.jpg
Thunbergia grandiflora, Ob Khan N.P. Chiang Mai, Jan 2014
Thunbergia grandiflora Mae Sa Waterfall Doi Suthep Pui NP Jan 2020.jpg
Thunbergia grandiflora, Mae Sa Waterfall, Doi Suthep-Pui N.P. Jan 2020
References: 
The Plant List
Forest Herbarium - BKF
Flora of China